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(No Model.) 3 Sheets-Sheet 1. L. MOND.

GAS GENERATOR.

Patented Jan. 27. 188

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(No Model.) 3 Sheetsw-Sheet 2. L. MOND.

GAS GENERATOR.

N0. 311,441. Patented Jan.27,1885.

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LUDWIG Mom), or WINNINGTON HALL, NEAR Noarniwron, oouNrY on enns'rnn, ENGLAND.

GAS-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 311,44r1, dated January 27, 1885.

Application filed March 7, 1884.

To aZZ whom it mag] concern.-

Be it known that I, LUDWIG MoND, a subjeet of the Queen of Great Britain, residing at \Vinnington Hall, near Northwich, in the county of Chester, in the Kingdom ofEn gland,

have invented certain new and useful Improvements in Gas-Generators, (for which I have received Letters Patent in England dated August 4. 1883, No. 3,821,) of which the following is a specification.

This invention consists in a new or improved form of gas-producer, in which the gas is generated from the solid carbonaceous fuel by partial combustion in the well-known i5 manner of gas-producers. Instead, however, as in other gas-producers, of admitting the air into the center of the fuel, or through the bars or aperture at which clinkering is effected, I admit air,preferably under pressure,through 2o grates or slits extending along one or more sides of the gas-producer, and placed above (and quite independent of) the clinkering-oririce, so that clinkering can be effected with ease and at any time without any interference 2 with the working of the producer.

1 preferably form my producer of rectangular forrn,with two perpendicular side walls and two fronts, or back and front walls, substantially similar in form, and carrying an arched o roof perforated for the usual fittings. This enables me to build my producers in long rows without loss of space, and each producer of larger dimensions and capable of doing a larger duty than would otherwise be practi- 5 cable. I form my front and back walls preferably perpendicular for a short distance downward, and below this slant them inward toward each other, and support them on deadplates, below which are the clinkering-holcs.

As both front and back can readily be got at, clinkering can be freely effected at all times without interfering with the working of the furnace, and inferior kinds of fuel can be used.

The invention is best described by aid of the 5 drawings annexed, showing two forms of gasproducer which I have found serviceable for carrying my invention into effect. In these Figure 1 is a sectional elevation of a gas-producer designed for a comparatively non-clinkering coal; Fig. 2, asectionalplan ofsame, following line X Y of Fig. 1. Fig. 3 is a vertical section of a gas-producer for very clinkery coal. Fig. at is a sectional plan, following line Y Z of Fig. 3.

Likeletters relate to like parts in all the drawings, and before going into those points where they differ the one from the other I will describe the parts common to them both.

A is the body or chamber of the producer;

B B, upper part of front and back walls of same, built perpendicularly; O 0, lower part of same, built sloping toward each other to the bottom and supported on dead plates, as shown; D D, pipes bringing air and steam, or air and other gases, from any convenient main 6 5 or mains to support combustion, and opening out and delivering into grates or grids E E, extending along the entire length of the chamber in both fronts, as shown, and at some distance above the dead-plate and the clini ering 7o aperture or bars below. The force of the blast and opening of the exit-valves can be so regulated that almost the entire or the entire airsupply shall be admitted through the grates E E, and not through the clinkeririg-aperture. 7 The air-grates being at a considerable distance above the clinkeringapertures, a strong blast can be employed without causing any gases to escape through these apertures.

F Fare working or poking holes closed with flaps for working the fuel down by means of bars when necessary to prevent arching of the fuel.

G is the hollow hearth raised above the working floor for ease in clinkering, and preferably filled with water, both to form a seal against the escape of the producergases and to cool the clinker and produce steam; I-I, waterpipe, kept running or turned on at intervals to maintain the water seal; I, iron plates, posts, or buttresses; and J, bolts for bracing the whole together, as is usual with metallurgical or alkali furnaces; K, arched roof pierced at points for the usual fittingssuch as L, feedhoppers; M, spy-hole; and N, gasdelivery pipe; 0, regulating valve or exit.

Referring now to Figs. 1 and 2 only, this particular furnace was designed for a comparatively non-clinkering coal. There are two ranges of air-grates, and, if desirable, air can be admitted through one and air and steam or other mixture through the other. P P are two cross-walls supported on arches to separate the center of the upper part of the chamber from that part where the coal is fed into the producer, and to oblige all the gases escaping through the delivery-pipe N to pass through the incandescent fuel in the center of the chamber. The taking off of the gas from the center of the producer below the surface of the fuel has been proposed before, but with other forms of gas-producers the construction in a permanent manner of a conduit projecting downward from the center of the roof to below the surface of the fuel has been so difficult that such conduits have had to be abandoned. My two arched walls, springing from the rectangular sides of the producer, obviate the difficulties of construction hitherto experienced.

Referring to Figs. 3 and 4, this producer is intended for very clinkery coal; it is made narrower than the last, and, further, is supplied with a series of bars, Q Q, instead of the sides being continued to a water seal, as in Figs. 1 and 2. Through these bars pokers and clinker-bars can be inserted, as well as through the holes F F.

To seal the bottom of the furnace, the doors R Rare used in place of the water seal, but Water is still used in the hollow hearth to cool the clinker.

It will be seen that one of the great advantages of my producer is that every part is very accessible when working. The air is admitted from the outside into grates almost incapable of being impeded by clinker, the fuel can be got at by Working-bars from every side, and the cllnker can be cleaned out without in the smallest degree disturbing the working of the producer, and from either or both sides of the chamber. Through this accessibility and ease in poking, clinkering, and removing ashes I am able to work up slack, shale, and other dirty fuel not fit for other gas-producers.

I am aware that gas-generators have been constructed that were accessible from all sides,

and that it is not broadly new to admit air above an opening through which the ashes and clinkers were discharged, and I therefore do not claim these features, broadly.

What I claim is 1. In a gas-producer, the combination of the continuous line of air-grates E on each side of the producer, said grates having the bars arranged in vertical planes, and having the air-passages spreading out, like a fan,with the contracted airinlet tubes D, of much smaller area, substantially as described.

2. In a gas-producer, the combination of the two parallel working-faces B O B 0, strongly tied with tie-bars, the transverse walls each common to two contiguous gas-producers, except the end walls of the row, and the transverse longitudinal arches P 1?,whereby a very strong serviceable gas-producer is formed.

3. In a gas-producer, the combination of the doors It R, the bars Q Q, and the clinkering-orifice below,with air-grates at ahigher level, whereby while clinkering can beeasily effected, the entire clinkering-orifice is sealed against gas emission except during clinkering, and a much higher pressure can be given to the air and steam admitted through the airgrates without fear of any escape of gas at the clinkering-orifice.

4. In a gas-producer, the two arched semidiaphragrn walls P P, firmly supported on the transverse walls, and dividing the upper part of the chamber into three compartments, the two outer compartments having feed-hoppers and the central compartment the gasexit pipe, by which means a strong firm division is formed, (to force the gases to pass through the incandescent portion of the fuel near the center of the chamber before escaping,) in place of the ordinary bell-mouth receiver suspended from the roof, substantially as described.

5. In a gas-producer, the combination of the sloping parallel working-fronts O O, having air-grates E therein, said air-grates being independent of the clinkeringopenings, and the poking-holes F,located bot-h above and below the air-grates, and entirely above the clinkering and discharge openings, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LUDXVIG MON D.

XVitnesses:

WM. 0. THOMPSON, O. SoUTHALL. 

